Handle finishing machine



3 Sheets-Sheet 1.

(No Model.)

0. H. BUMP. HANDLE FINISHING MACHINE.

No. 594,825. Patented Nov. 30, 1897.

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3 Sheets-Sheet 2.

O. H. BUMP.

HANDLE FINISHING MACHINE.

minesses- W vw w Patented Nov. 30; 1897.

3 Sheets-Sheet 3.

(No Model.)

0. H. BUMP. HANDLE FINISHING MACHINE.

Patented Nov. 30, 1897.

mine we a v gm 2% AM M UNITED STATES PATENT 'FFICE.

CHARLES H. BUMP, OF BRANDON, VERMONT, ASSIGNOR TO THE NEWTON & THOMPSON MANUFACTURING COMPANY, OF SAME PLACE.

HANDLE-FINISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 594,825, dated November 30, 1897. Application med July 23,1896. Serial No. 600,260. (No inodel.)

T at whom it may concern:

Be it known that I, CHARLES H. BUMP, of Brandon, in the county of Rutland and State of Vermont, have invented certain new and useful Improvements in Handle-Finishing Machines, of which the following is a specification.

This invention has relation to machines for finishing those handles which areusually employed in connection with wire bails for buckets, pails, &c., and has for its object to provide a machine for automatically rounding the ends of the handles and forming central longitudinal apertures through the same without any manual work save that required in feeding the blanks to the machine.

To these ends my invention consists of an improved machine having such parts and features as I shall now proceed to describe with particularity, and set forth in the appended claims.

Reference is to be had to the annexed drawin gs and to the letters marked thereon, forming a part of this specification, the same letters designating the same parts or features, as the case may be, Wherever they occur.

Of the drawings, Figure l is a perspective View of one form of machine in which my invention is embodied. Fig. 2 is a plan vieW'of the same. Fig. 3 is a transverse vertical section through the machine, showing the parts somewhat enlarged. Fig. 4 shows in detail one form of mechanism for imparting an intermittent movement to the carrier. Fig. 5 is a perspective view of the pawl employed with the device illustrated in Fig. 4. Fig. 6 shows in detail the cam for operating the stop mechanism.

In carrying out my invention, of which I have shown but one form in the accompanyin g drawings, I employ a frame having a platform a with legs or standards I) for supporting the operative parts. In bearings c,formed with or secured to the end standards I) of the frame, I mount a longitudinallyarranged mainshaft d, to which power is imparted from a belt-wheel e, shaft 6 and gear-wheels f and g.

For receiving and supporting thehandles while they are being dressed and finally prepared for use I employ a novel carrier, which is shown at h. It consists of a disk or cylinder having in its periphery grooves 1', which lie parallel to the axis thereof. These grooves are semicylindrical and are adapted to receive 5 5 the handles from the feed-slide, from whence they are carried into position to'be operated upon and are finally discharged.

The support and carrier h is mounted upon a short shaft j, journaled in bearings 70 upon the base or platform, and receives an intermittent motion from the main shaft 01 through the medium of the following devices; A rod Z, depending from the base or platform, has pivoted to its lower end a bar 1%, which is con- .nected by a link n with an arm 0, loosely pivoted on the short shaftj and provided with a pawl or dog 19 on its free end. The end of the pawl is adapted to enter notches q in a disk 4, formed integrally with the carrier h or rigidly secured to the shaft j. On the main shaft 01 is a cam s, which will depress the bar m once for each revolution and move the carrier forward one tooth. In order to return the bar m to its original position, I employ a spring 75, connected with the outer free end of the bar. I For insuring the stopping of the carrier at the exact point I employ a movable stop-slide It, sliding in guides o on the base or platform and adapted to engage the walls of the grooves in the carrier h. The'slide is reciprocated by a lever w, pivoted in supports :0 and havingon its free end a Weight g. The lever is actuated by a cam 2 on the main shaft cl.

The carrier-actuating device and the stopping devices are so timed that when the carrier is being moved forward the slide is withdrawn from engagement with it, and vice versa.

In connection with the movable carrier I employ a novel device for holding the handles securely in the peripheral grooves 1' while they are being operated upon. It consists of a segmental plate a of iron, the segment-being a 5 portion of a circle concentric with the carrier. The under face of the plate a is covered withathick layer b of elastic material, such as rubber or its equivalents, and the lower face of the rubber is covered with apiece of springsteel 0 the whole forming an elastic or spring pad which adapts itself to any inequality of of short cylinders, and they are then ready to have their ends rounded and to have a longitudinal through-slot bored in them.

I shall now proceed to describe the tools and devices for rounding the ends and forming the slots 0r apertures just referredto.

9 indicates two rotary spindles, which are mounted in bearings 72/2 on the'platform. The ends of the spindles are provided with bits and cutters i for first rounding the ends of the handles and forming short apertures therein.

7' indicates similar spindles,which are provided on the ends with long bits or boringtools 7.2 The handles are first acted upon by cutter-heads,which center them and the bitsboring short through-holes in them. The

handle is then transferred by the carrier into the line of the bits to be acted upon by The spindles are rotated by belt wheels 1*, rigidly mounted on them; 'butthey. also have alongitudinal movement, which is. effected as follows: m are sa ddles,which-are secured to the spindles 3' between collars n the saddles traveling back and forwardwith. the spindles j and having more or less of a. sliding movement relative to the spindles g v For sliding the saddles back and forth I employat each end of the machine a leverp mounted'in supports 1 and having on its lower end a. roller 0*, bearing against a cam .9 mounted upon the main shaft d. When the saidshaft: d is rotated, the lever 19 will force the'saddle= The spindle j will be forced them.

between the collars o thereon.

m forward. steadily forward,while the spindle 9 will not be actuated until the saddles come into at. gagement with the inner one of the two col- The levers are returned to their;

lars 0 original positions by springs 2 of which'each has one end secured to the end of the levers p and the other end to a rod 10 projecting from the standard.

'0 is a feed-slide on which the roughly-finished handles are placed to be fed to the carmen for holding the handles in place.

a series of holes 0 in the carrier.

A number of roughly-finished handles are placed upon the feed-slide. As the carrier is intermittently actuated the handles one by one will fit into one of the grooves in the carrier and will in due time be carried into the vertical lines of the spindles g The rotation of the main shaft (1 will, through the cam s and lever p force the spindles 9 forward, so that the cutters will act upon the end of the handles and around them, also forming in the ends of the handles short apertures. The carrier being again actuated, the handles will be carried forward and ultimately arrive in the lines of the spindles 3' The bits 70 require that the spindles 3' should be moved forward for a considerable distance in order to bore through apertures, while the cutters i need to be fed forwardbut a short distance, and hence the-saddlesm are arranged so as to have a sliding relationship relatively to the spindle g' and to move them forward duringbuta portion of their movement. After the handles have been acted upon the continued rotation of the carrier will carry the finished handles around until they are engaged bythe spring a which will free them from the carrier. I so time the parts that one of the bits 70 will move slightly in advance of the other one in order that they will not through-slot.

Havingthus explained the-nature of the invention and described a way of constructing and using the same, though without attemptingto setforth'all of theforms in which it 5 maybe made-or all of the modes of its use, it is d'eclaredthat what is claimed is' 1. In a machine for finishing handles, a roftary carrier provided with peripheral recepftacles-for the blanks, in combination with a segmental pad arranged to hold the blanks in the saidreceptacles, the saidpad consisting 0f a layer of rubber or equivalent material having a'metallic frame or backing and a flexible metallic bearing-face the said backing rubber layer and metallic face being secured together-and fitting upon each other throughout 'the length of the pad so as to form one solid integral device, substantially as set "forth.

2. A rotary carrier-disk h having groovest' 1 in its periphery,in combination with a notched disk'r turning with thesaid carrier, a pawl engagingthe said disk r to turn the same, a

1 Cam 8, bar m, link at and arm 0 for operating said pawl from the driving-shaft,- a retracting-spring t connected to said bar, a stop-slide q u arranged to engage the grooves't' of the carw- 1s a wire sprin g secu red to the feed-slide;

"rier, a weighted lever w, operating the said slide,-and the main'shaft and its cam z for To assist the stop-slide in preventing the, carrier from moving while the handlesare; being acted upon, I employ an additional de-@ vice consisting of a rod a secured at one'end to the levers p and having at its other end; a finger b adapted to be thrust into one of;

i said holes, levers actuating the said stops and a rotary shaft provided with cams whereby strike against each other in forming the I ed to enter a hole or recess ofthe carrier for holding the latter without motion substantially as set forth.

In testimony whereof I have signed my I 5 name to this specification, in the presence of two subscribing witnesses, this 18th day of January, A. D. 1896.

. CHARLES H. BUMP. Witnesses:

W. P. SEssIoNs, R. A. SEssIoNs. 

